The “sensitive area” of the male many people are embarrassed to talk about, and the “sensitive area” of the disease but many men bring trouble. The skin of a normal man’s penis is thin, and the skin near the head of the penis folds inward into a double layer that covers the head of the penis, called the “foreskin”. The so-called “prepuce” or “circumcision” is a physiological change in the male genitalia, “prepuce” refers to the foreskin mouth is too small, so that the foreskin can not be turned up to reveal the head of the penis; “circumcision” refers to the foreskin covers all the head of the penis, but the foreskin mouth is not small, can still be turned up to reveal the head of the penis. The actual circumcision or circumcision is harmful to human health, especially the circumcision is more harmful. The specific hazards are as follows: 1. induce penis head circumcision. Because of the long-term accumulation of dirt and foreskin under the foreskin, it is easy for bacteria to multiply and grow, causing inflammation and redness and pain. It is advisable to get foreskin glansitis, the pathogenesis of which is the same as foot odor. The hands and feet are extremities, foot odor is a fungal infection, but the hands are generally not infected, because the hands are exposed, ventilated and dry, while the feet are dark and damp, this environment is prone to fungal infection. The following treatment options can be tried: 1, pay attention to local hygiene, often wash with water; 2, external disinfectant, such as potassium permanganate bubble, 1/5000 external use; 3 circumcision, no shady and humid environment, there will be no circumcision 2, induce penile cancer. Foreskin scale is a carcinogenic substance. Frequent episodes of penile head circumcision become a kind of long-term chronic stimulation, which can also cause penile cancer. 3.Affect the function of urination. In severe circumcision, the opening of foreskin is narrow like a pinhole, so urine cannot be discharged smoothly when urinating, and the foreskin will bulge up like a small ball, so it is easy to cause urinary tract infection repeatedly, and even the bladder and kidney are also involved. 4, easy to occur embedded sexual phenomenon. Because of the narrow foreskin mouth, such as the foreskin is barely turned up and not reset in time, the narrow foreskin mouth can be tightly strangled in the coronal groove of the penis, obstructing the blood circulation of the distal foreskin and penis, resulting in swelling of the penis head and distal foreskin, over time, the foreskin and penis head will be ischemic necrosis. This shows that those who are circumcised or circumcised should plan ahead and not wait for the above-mentioned hazards to appear before thinking of treatment, but should be solved as early as possible. The most thorough method is to perform circumcision to surgically remove the overgrown and redundant foreskin. The purpose of circumcision is to maintain cleanliness and hygiene. There are many oil glands on the foreskin and glans, which secrete the so-called foreskin scale and produce a special smell. If the foreskin is too long, coupled with sweating and dirt, it will produce red spots on the skin and itch, which we call “foreskin glansitis”. A long foreskin also affects the sexual life of both sexes. Many men’s foreskins are prone to dermatitis, causing itchy, allergy-like skin rashes. In addition, the hygiene of the male foreskin is closely related to women’s health, and many women suffer from urethral discomfort, local itchiness, and vaginitis after sex, all of which are related to men’s long foreskin and poor hygiene habits. Cervical erosion and cervical cancer in women are also confirmed to be closely related to the hygiene of male foreskin. So men should consider not only their own comfort but also the health care needs of their loved ones, and circumcision is a once and for all operation. Circumcision is a must. The important thing is to know how to clean and keep the glans and the inner plate of the foreskin dry. If the cleaning is done well, there is no need to have surgery to remove the foreskin, no matter how long it is as long as it is easy to turn up. Circumcision is a simple operation that removes the excess foreskin and closes it with intestinal sutures, requiring only local anesthesia, no hospitalization, and no stitch removal. People who are circumcised or circumcised should eliminate their tension and fear and not shy away from seeking medical attention for the sake of happiness. One more word: to the “sensitive area” to do hygiene, do not use soap, water is sufficient. The foreskin as part of the male external genitalia, has important physiological functions, such as the protection of the glans. However, the moist and warm environment of the foreskin cavity makes it easier for bacteria to multiply here. Therefore, the idea that circumcision alone can cause inflammation is incomplete. It is a matter of balance, and if the growth of bacteria exceeds the self-purifying function of the foreskin, inflammation of the foreskin may occur. Repeated inflammation of the foreskin will require surgical removal of the overgrown foreskin. When a man with long foreskin has sex, it is easy to bring the foreskin scale and bacteria into his wife’s vagina, causing her to develop vaginitis and cervicitis. It has been confirmed that foreskin scale contains cholesterol, which can be transformed into carcinogenic substances by bacteria and can cause cervical cancer by stimulating women’s vagina and cervix for a long time. According to foreign surveys, 80% of cervical cancer patients have a long-term sexual partner who is circumcised or circumcised. The incidence of cervical cancer in Jewish women is extremely low because of the “circumcision” of the male child shortly after birth. Generally speaking, the long foreskin covers the glans, which reduces the stimulation of the glans by underwear and keeps the glans sensitive to a certain extent. If the foreskin is removed to protect the glans, the mucous membrane on the surface of the glans will be thickened and the sensitivity will be slightly reduced. However, the sensitivity of the glans surface itself is very high, and even if it is slightly reduced, it will not have a great impact on sexual pleasure. One researcher conducted a controlled study of circumcised and circumcised men and found no significant differences in erectile function, ejaculatory function, or overall satisfaction. Therefore, circumcision does not have a significant impact on sexual pleasure, but rather can prolong ejaculation time to some extent. As to whether circumcision should be removed, our opinion is that both circumcised and circumcised patients should undergo surgical treatment to remove the overgrown foreskin. Circumcision can be done electively, but before the surgery, the foreskin should be cleaned to maintain hygiene, while for circumcision, if not treated by surgery, it may lead to penile cancer and should be operated as early as possible.